Hand tool



DecN s, 1942*. M. P. JAcKLmE l lHAD TooL Filed May 27, 1940 ATTORNEYSPatented Dee.` 8, 1942 n UNITED STATES PATENT OFFICE HAND rooL MorleyPysonJackline, Kansas City, Kans. Application May 27, 1940, serial No.337,397` 1 l (ci. 306-32)` I j 5 claims. This invention relates to handtools of the nature having normally separable-heads and han`` dles, andthe primary object f the invention is toyprovide novel means forinterconnecting the saidheads and handles of tools so that accidentaldisplacement Will not occur.

One of the important aims of this invention is Athe provision of Ameansfor interconnecting the heads and handles of well-known tools, whichcomprises specially forming the head and equipping the handles withplates, the nature of which allows an interlocking relationship with theheads so that the desired result of securing the parts together isattained.

This invention `has for a further aimthe pro` vision ofa hand tool,` thehead and handle of `which are arranged so as to interlock when thewedges forming a part of the tool are driven to position, said wedgesbeing engaged by detents for the purpose of precluding accidentaldisplacement.

A yet further aim of the invention is to pro` vide'a hand tool having ahead wherein is provided a cavity and slot, the same being incommunication and adapted -to receive a portion of th'efhandle andV apart of a specially designed plate that is carried by the handlerespectively'.

A further object of this invention is to provide a novel wedge for toolsof the aforementioned character, the nature of which wedge permitssimultaneously expanding the handle and plate at the zone of juncturebetween the handle and head of the tool so that portions of the plateare created on plate I6. The opposed walls of head moved outwardly intothe slot as the wooden handle is tightened in the cavity.

Two illustrated embodiments of the invention are Figure 1 is afragmentary longitudinal sectionshown in the accompanying drawing,wherealview through a portion of a hand tool embody-` ing the presentinvention. i

Fig. 2 is a fragmentary longitudinal sectional view taken on line lI-IIof Fig. 1.

Fig. 3 is a fragmentary longitudinal sectional Fig. 7 is a fragmentaryend elevational view of the hand tool shown in Fig. 3.

While the following specification refers specically to the form of handtool illustrated in the drawing, it must be understood that the meansfor joining the wooden handle II) and headI 2 of the hammer, shown, maybe employed in interconnecting similar parts of any convenl tional handtool.

Referring to Figs. l, 2 and 5, handle I0 is bifurcated at one end topresent a pair of legs I4 between which plate I6 is positioned. Afterplate l I6 is moved to place, rivets I8 anchor the parts together with aportion of plate I6 projecting longitudinalhr beyond the end of handleI0.`

Head I2 has an opening therethrough, which opening comprises a socketportion 20 and a slot portion 22. Slot 22 communicates with socket 20and projects outwardly from the bottom of the socket to receive theaforesaid projected portion of plate I6.

A cavity 24 in communication with slot portion 22 extends outwardly fromtwo opposed edges of the slot to receive laterally extending lugs 26 I2which form slots 22 have sinuous surfaces 28` which interlock withsinuous faces 30 formed along a portion of the longitudinal edges ofplate I6. These sinuous faces 30 are created along that part of plate I6which projects longitudinally from-the end of handle I0 and into slotportion 22. i

Relatively deep notches 32 formed inwardly from the projected endlofplate I6 each receives a Wedge 34, which when moved completely to place,is positioned behind detent 36 formed integrally with plate I6.

Plate I6 is resilient enough to permit wedges 34 to be moved to theoperative position where sinuous surfaces 28 and sinuous faces 30 areinterengaged and the depth of cavities 24 is great enough to permit lugs26 to move outwardly as Wedges 34 are forced past detents 36.

When the parts are so associated as seen in Fig. 1,\with the end ofhandle I 0 against the bot-` tom` of socket portion 20 and with theprojecting p-artof plate I6 in .slot 22, relative movement3 betweenhandle I D and head I 2 is virtually im- I possible. The width of slot22 l is appreciably less than the width of handle IIJ and substantiallythe same as the width of plate I6.

In the form of the invention illustrated in Figs. 3, 4, 6 and '7, handle50 is bifurcated in the same manner as afore set down, and head 52 hasan 55 opening therethrough which is divided into la socket portion 54and slots 56. Cavities 58 extend outwardly from slots 56 and the opposedwalls of head 52 forming cavities 56, have sinuous surfaces 60 toreceive the sinuous faces 62 of plate 54.

Plate 64 has laterally extending lugs $6 to enter cavities 58, as abovedescribed, and relatively deep notches 63 extend inwardly from the endof plate 64 to receive wedges l0, each of which is specially formed topresent laterally extending wings l2 that are reduced to a sharpenededge 14, at one end thereof. This type of wedge when driven to positionbehind detents 16, will expand the parts of plate 6d on each side ofnotches 58" so as to interlock the elements just described, and further,to tighten that portion of handle l!) on each side of the notched part'of plate llill so that it is held tightly againstv the walls of head 52forming socket 54.

Hand tools embodying two forms of theinvention havefbeen illustrated anddescribed, and in View of the manner in: which the broad coriceptsY ofthis invention might be built into other typesof tools, it is desiredtobe limited in' the embodiment of the invention only by the spiritthereof and scope of the appended claims.

Havingr thus described the invention, what is claimed asnew and,.desired to be secured by Letters Patent is:

1. A hand. tool of the character described co-mprisingy a head providedwith an opening therethrough, said opening having. a socket portion andaslot in communication with the socket; a bifurcated handle fitted intothe socket of the head; a plate inthe bifurcation of the handle havingva deep notch extendingY inwardly from one end, thereof intermediate theedges, and sinuous faces formed along the edges on each side of the.notch; a sinuous surface formed in the slot in,l opposed relation with.each sinuousface on the plate; and a wedge in the notch of ,the plateserving tohold the sinuousffaces off the plate in engagement with thesinuous surfaces of the slot, a portion of, said plate being extendedbeyondthe handle and into the slotsaid head having` a pair of opposedcavities incommunication with the slot near one end ofthe latter, saidplate having laterally extending lugs at the end' thereof formed toenter. the cavities when the wedgesv are in place.

2. A hand tool of the character described comprising a head providedwith an opening therethrough, said opening having aA socket portion anda slot in communication with the socket; a bifurcated handle fitted intothe socket of the head;, al plate in the bifurcation of the handle:

rhaving a deep notch extendingy inwardly fromoneend thereofvintermediate theedges, and sinuousf faces formed along the edges'on.each side ofy the notch; a. sinuous surface formedV inv the Slot inopposed. relation4 with each. sinuous face on, the plate; and a wedge inthe notch. of thev tion with the slot near one end of the latten.

said plate having laterally extending lugs at the end thereof formed toenter the cavities when the wedges are in lplace, said plate having adetent thereon to prevent accidental withdrawal of the wedge, saidcavities being relatively deep with respect to the height of said lugswhereby the wedge may force the lugs outwardly as it is moved to theoperative position beyond the detent.

3. A hand tool of the character described comprising a head providedwith an opening therethrough, said opening having a socket portion and aslot in communication with the socket; a bifurcated handle tted into thesocket of the head; a plate in the bifurcation of the handle having adeep notch extending inwardly from one end thereof intermediate theedges, and 4 said wedgev having laterally extending, tapered.

wings thereon for entering the handle on each side of the plate.

4. A hand tool of the character described comprising a head providedwith an opening therethrough, said opening having a socket portion Y anda slot in communication with the socket;

a bifurcated handle fitted into the socket of theA head; a plate in thebifurcation of the handle. having a deep notch extending inwardly fromone end thereof intermediate the edges,v and sinuous faces formed alongthe edges on each sidefof the notch; a sinuous surfaces formed in thevslot in opposed relation. with each sinuous face on the f plate; andawedge inthe notch of the plate serving to; hold, the sinuous facesofthe plate in engagement with the sinuous surfaces of the slot, av

portion of. said.r plate beingextended beyond `the handle and into theslot, said wedge having laterally extending, tapered wings thereon forentering the handle on each sider of the plate, said wedge` having agreater angle of inclination than the wings thereof whereby the plate ismov-ediV outwardly into the slot as thehandle is tightened in thesocket.

5. A hand tool of the character described com-y prising a head providedwith an opening therethrough, said opening having asocketv portion andav slot in communicationA with` the socket; v a bifurcated. handlefitting into the socket of the head; a plate in the bifurcation ofthehandle having a pair of spaced, deep notches. extending inwardly frornone end thereof inter.-

mediate the edges, said edges of the plate having, j

sinuous faces, a sinuous surface formed in the slot in opposedkrelation. with each sinuous face*` on the plate; and a wedge in each;notcho-f they plate serving to hold the sinuous faces of the plate inengagement with they sinuous surfaces'- of, the.` slot, each of saidwedges having laterally extending wings thereon provided;with-sharpenedw edges for entering the handle on each side of the plate'towedge; thehandle inA said socket portion.

MORLEY PYSON JACKLINE.v

